c
Faculty of Production Engineering, University of Bremen, D-28359 Bremen, Germany
E-mail:wei@uni-bremen.de

Abstract

There has been increasing interest in the use of molybdenum disulfide (MoS2) for the synthesis and application of functional hybrid nanomaterials. Here, for the first time, we prepared MoS2 nanosheets that were modified with organic copper (OCu) nanowires by a facile two-step hydrothermal synthesis. Multi-characterization techniques such as scanning electron microscopy, transmission electron microscopy, and atomic force microscopy were used to observe the conjugation of OCu with MoS2 and the morphology of the fabricated MoS2–OCu nanohybrids. In addition, other methods such as X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and X-ray diffraction were utilized to understand the structure and properties of the prepared MoS2–OCu nanohybrids. Finally, the synthesized MoS2–OCu nanohybrids were further utilized to fabricate multi-functional electrochemical sensors for highly sensitive detection of hydrogen peroxide (H2O2) and ascorbic acid (AA). The obtained results indicate that the synthesized novel MoS2–OCu nanohybrids exhibit excellent electrocatalytic activity towards both analytes, and present potential applications for detecting H2O2 and AA with high stability, sensitivity, and selectivity.

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